Does Grok Imagine generate audio automatically?

Yes. Grok Imagine generates video with native audio by default — dialogue, ambient sound, and effects are all created in sync with the visuals. This includes multi-character dialogue with distinct voices, material-accurate sound effects (footsteps, collisions, surfaces), and scene-aware ambient audio. You don’t need a separate text-to-speech or sound design step, and you don’t have to add audio in post-production. On A2E, the synchronized audio is included on every clip at no extra cost.